Design And Implementation Of English Online Answering System In Higher Vocational Colleges

Online question answering system is an important part of the network teaching mode,and also an important means to make up for the lack of interaction between teachers and students in the network teaching mode.From the research status and development trend at home and abroad,the current online question answering system using the database query and manual answer way has become increasingly difficult to meet the rapid development of network teaching trends.To this end,this paper will be based on the requirements of online English answering system in higher vocational colleges,research on the construction of the system,and focus on the realization of the system's intelligent Q & A.This paper mainly uses the system requirements analysis,system design,system implementation ideas to carry out online English question answering system in Higher Vocational colleges.In the demand stage,use case diagram method using UML techniques to analyze system specific use functional requirements,and system data flow analysis,lay the foundation for the design of English online answering system in higher vocational colleges;in the stage of system design,design of the system model,system framework,system function structure and system database,and Research on key questions about information feature extraction algorithm;in the implementation stage,the use of lightweight J2 EE technology,to develop the system to achieve the function of business.In the course of the study,research,focus on intelligent answering system function for text segmentation firstly,semi supervised learning method using maximum likelihood estimation and boundary entropy learner question information;then,using singular value decomposition(Single Value,Decomposition,SVD)method to extract the characteristics of learners in answering information(keywords)finally,the similarity calculation method;using Pearson to calculate the similarity of text feature information and answering questions of information characteristics,and then answering information recommendation,intelligent question answering learners.English online answering system in Higher Vocational Colleges in this paper not only realizes the online answering function network based on learners,and focus on the automatic answering interrogative information based on the characteristics of the recommendation algorithm is studied,in order to reduce the cost of online answering online answering,improve the efficiency of online answering system,have certain reference and development network teaching.